Steve
CO2 Check Valve
I received a replacement CO2 check valve a week ago and after installing it could not get CO2 flowing through it. I spoke with Mark at Aquariumplants.com who helped me troubleshoot the possible problems and after I followed his direction and steadily increased the pressure from the regulator, found a pressure that “activated” the check valve. I appreciated the customer service in getting the part to work correctly. The only other feedback is I left an email and voicemail before calling a second time and having someone help me.




